Brush and method of making the same



A. H. HENNING.

BRUSH AND METHOD OF MAKING THE SAME.

APPLlCATlON FlL-ED DEC. 4, I917.

Patented Jan. 6, 1920.-

ATTOR N EYS AUGUST H. HENNING, 0F MILWAUKEE, WISCONSIN.

BRUSH AND METHOD OF MAKING THE SAIME.

Specification of Letters Patent.

Application filed December 4, 1917. Serial No. 205,289.

To all whom it may concern:

Be it known that LAUGUST H. HENNING, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Brushes and Methods of Making the Same, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

The invention relates to brushes and a method of making the same. While the brushes embodying the invention are particularly designed for use in knitting machines they may be used for other purposes.

. By the hereinafter described method I can produce a brush economically and one in which the bristles are firmly secured by bending portions of the metal piece forming the frame upon itself with the bristles disposed between these portions.

The invention is further designed to provide a brush in which the bristles are secured against lateral or lengthwise movement in the frame by bending or forming the frame about the bristles thus eliminating the use of additional fastening means.

The invention is further designed to provide a brush having a unitary back, which back is reinforced by bending over and overlapping portions of the metal forming the A further object of the invention is to provide a brush in which the member securing the bristles in place consists of a band having centrally disposed overlapped tapered ends so that when the band is bent widthwise with the overlapped ends facing inside the overlapped bent ends strengthen the center of the member to prevent buckling, and the tapering of the ends permits the outer sides of the member to be bent inwardly around the overlapped tapered ends to lock said ends in place.

The invention further consists in the several features hereinafter set forth.

In the drawings:

Figure 1 is a plan view of the frame member' Fig. 2 is a view of the bristles positioned in the frame member preparatory to being secured therein, parts being broken away;

Fig. 3 is a side view of the completed brush;

Fig. 4: is an end view thereof; and

Fig. 5 is a section taken on the line 55 ofFig. 3.

The materials used in making the brush consist of a fiat piece *6 of bendable metal, such as, sheet metal or sheet tin, which is preferably tapered at its ends 7, and bristles 8 of any suitable kind.

In making the brush the piece 6 is bent over to form a band 9 in which the bristles 8 are disposed so that they project outwardly from the flat sides of the band, the ends of the band overlapping each other, as shown in Fig. 2. This is done by bending the ends 7 of the fiat piece 6 to overlapped position to form the band, placing the bristles within the band so formed and then pressing the ends of the hand down firmly to engage the bristles. With the bristles in alined position within the band, it is then folded medially of its width on a longitudi nal line of fold with the overlapped ends faced inside and the folded edges pressed together and crimped thus firmly securing the bristles within the folded portions of the band both at the ends and sides of the band.

With this method a brush is produced in which the frame is provided with a-reinforced back and in which the bristles are firmly wedged between the folded portions of the back due to the bending of the sides of the band, the inner side at its point of bending wedging up against the bend of the outer side.

Furthermore the tapering and overlapping of the ends of the band is important first because the overlapped ends produce a reinforcement for the central portion of the back of the brush where it is most needed and second because the tapering of the ends permits the outer sides to be bent inwardly adjacent the tapered sides and thus lock the ends together and firmly secure the bristles in place.

It will also be noted that as the bristles are laid within the band there is no chance for the bristles coming out at the sidesof the frame.

With this construction the bending of the band over the bristles and the ends of the band obviates any necessity for providing additional fastening means to secure the bristles in place.

Patented Jan. 6, 1920..

The invention thus exemplifies a simple but strong and inexpensive brush and a method of making the same.

What I claim as my invention is:

1. A brush comprising a head formed of a sheet metal strip having outer and inner integral binding portions, the terminal parts of the strip forming the inner, and the intermediate part the outer binding portion, said portions having central longitudinal bends and having between them a space which is U-shaped in cross section, said ter minal parts being tapered at their ends, and bristles clamped at their mid portions between said binding portions.

2. A brush comprising a head formed of mid portions between said binding portions, 'the lower edges of sald outer blnding portion extending inward below the tapered parts firmly against the bristles.

In testimony whereof I afliX my signature.

AUGUST H. HENNING. 

